ounce

1 of 2

noun (1)

ˈau̇n(t)s 

1

a

: a unit of weight equal to ¹/₁₂ troy pound see Weights and Measures Table

b

: a unit of weight equal to ¹/₁₆ avoirdupois pound

c

: a small amount

an ounce of sense

2

: fluid ounce

ounce

2 of 2

noun (2)

: snow leopard

Synonyms

Noun (1)

• ace
• bit
• crumb
• dab
• dram
• driblet
• glimmer
• hint
• lick
• little
• mite
• nip
• particle
• peanuts
• ray
• scintilla
• scruple
• shade
• shadow
• shred
• skosh
• smack
• smell
• smidgen
• smidgeon
• smidgin
• smidge
• snap
• soupçon
• spark
• spatter
• speck
• splash
• spot
• sprinkling
• strain
• streak
• suspicion
• tad
• touch
• trace

Examples of ounce in a Sentence

Recent Examples on the Web

Noun

Jihad, their first child, weighed 5 pounds 8 ounces. —Bilal Shbair, New York Times, 23 Apr. 2024

The foldable, ultra-portable quadcopter weighs a mere 249 grams (around 8.8 ounces), yet can still handle wind resistance of up to 10.7m/s. —Brandon Widder, The Verge, 20 Apr. 2024

Both flavors will be available to purchase soon nationwide and will come in both 12 ounce cans and 20 ounce bottles. —Emily Deletter, USA TODAY, 18 Apr. 2024

Spot gold was up 0.3% at $2,349 per ounce on Monday. —Laura He, CNN, 15 Apr. 2024

Prices for gold—traditionally seen as a safe-haven asset—were flat at $2,375 per ounce, and remain below the record highs touched on Friday. —Jason Ma, Fortune, 15 Apr. 2024

Handmade in Asheville, North Carolina, these mugs hold up to 12 ounces of morning joe and are virtually indestructible. —Lauren Finney Harden, Southern Living, 15 Apr. 2024

This rural county of 1,100 people has no hospitals, one of the highest poverty rates in the country, and 1 in 4 babies is born weighing less than 5 pounds 8 ounces. —Jeremy Ney, TIME, 9 Apr. 2024

Because people aren’t usually drinking these wines in copious amounts, the glasses are small—about three ounces, as opposed to a standard wine pour of five ounces. —Tiffany Hopkins, Bon Appétit, 8 Apr. 2024

Word History

Etymology

Noun (1)

Middle English, from Anglo-French unce, from Latin uncia 12th part, ounce, from unus one — more at one

Noun (2)

Middle English unce lynx, from Middle French, alteration (by misdivision, as if l'once the ounce) of lonce, probably from Old Italian lonza, from Middle Greek lynk-, lynx, from Greek

First Known Use

Noun (1)

14th century, in the meaning defined at sense 1a

Noun (2)

1774, in the meaning defined above

Phrases Containing ounce

• an ounce of prevention is worth a pound of cure
• fluid ounce

Kids Definition

ounce

noun

ˈau̇n(t)s

1

a

: a unit of weight equal to ¹⁄₁₂ troy pound (about 31 grams) see measure

b

: a unit of weight equal to ¹⁄₁₆ avoirdupois pound (about 28 grams)

c

: a small amount

an ounce of common sense

2

: fluid ounce

Etymology

Noun

Middle English unce, ounce "ounce," from early French unce (same meaning), from Latin uncia "a twelfth part, ounce," from unus "one" — related to inch, unite

Word Origin

The Latin word uncia was used to mean "a twelfth part of something." In reference to length, it meant one-twelfth of a pes "foot." In reference to weight, it meant one-twelfth of a libra "pound." Uncia, as a unit of length, came into Old English as ince or ynce, which became our inch. Uncia, as a unit of weight, came into Middle English from the early French word unce and became our ounce. In the present system of weights used in this country, the pound is divided into sixteen parts instead of twelve. The result is that the ounce, which originally meant one-twelfth, is now equal to one-sixteenth of a pound.

Medical Definition

ounce

noun

ˈau̇n(t)s 

1

a

: a unit of troy weight equal to ¹/₁₂ troy pound or 31.103 grams

b

: a unit of avoirdupois weight equal to ¹/₁₆ avoirdupois pound or 28.350 grams

2

: fluid ounce